Form-holding yoke



June 14, 1927.

J. E. McFARLAND vom: HOLDING You Filed July v. 1926 3 In/ouate@ JE [Vf/Vrlu nel enanas.

Patented June 14, 1927.v

UNrrrn vSITATES,

PATENT. oFF1CE.

JOSEPH E. MCFARLAND, 0F BURLINGTON, NORTH CAROLNA, ASSGNOR 0F ONE-THIRD TO CLAUDE G.- SOMERS, 0F BURLINGTON, NORTH CAROLINA'. i

FORM-HOLDING YOKE.

Application filed July 7,

This invention relates to form holding yokes and it is an object of the invention to provide a device of this kind which may be readily and conveniently adjusted in accordance with the requirements of practice and which, when not in use. may be readily coinpacted to facilitate either storage kor shipment.

lt is also an object of the invention to provide a yoke of this kind comprising a plurality of members of duplicate construction and which coact one with the other in a manner eifectually maintaining in desired assembly the forms for molding concrete columns and the like.

The invention consists in the details of construction and in the combination and arrangement of the several parts of my improved form holding yoke whereby certain innjiortantadvantages are attained and the device rendered simpler', less expensive and otherwise more convenient and advantageous for use, as will be hereinafter more fully set forth.

The novel features of my invention will hereinafter' be deiinitely claimed.

in order that my invention may be the bet-ter understood, .l will now proceed to describe the same with reference to the accompanying drawings, wherein Figure ,l is a view partly in section and partly in top plan illustrating a form holding yoke constructed in accordance with aneii'ii'iodiment of my invention and in applied position; 1

tiigure 2 is a. fragmentary view partly in section aud partly in elevation illustrating they invention as herein embodied;

`Figure tl is a view in perspective of one of the yoke members unapplied.

As herein disclosed, my improvedyoke comprises a plurality of holding members A of duplicate construct-ion and preferably con'iprising` four to a set. Each of the members A consists of an elongated strip l having one end portion returned to provide a relatively short arm 2 overlying the adjacent end portion of the strip 1proper. Slidably mounted upon the strip 1 is a U- member or bracket 3 having pivotally mounted between the free end portions of its 1926. Serial No. 120,989.

side arms a a cam member 1l, said member Llbeing continued to provide an operating handle 5.

The end portion of the strip l remote from the arm 2 is provided with a laterally eX- tending flange or lip 6 providing means whereby the member or bracket 3 is prevented from becoming separated .from the strip l.

As herein disclosed, my improved yoke comprises four members A and these members are disposed against the outer faces of the walls of the form with an end portion of one member A engaged between the arm 2 and the strip l of an adjacent member, while the member or bracket 3 is effectively clamped by the cam 4c against the outer edge of a third member A. While my improved yoke, as herein embodied, is extremely simple yet it is highly eilicient in its use and can be readily and conveniently applied or removed. Y 1

It is also to be understood that in practice the assembled members A of the yoke are preferably in quarter relation.

`From the foregoing description it is thought to be obvious that a form holding yoke constructed in accordance with my invention is particularly well adapted for use by reason of the convenience and facility with which it may be assembled and operated, and it` wvention is susceptible of some change and modification without departing from the principles and spirit thereof and for this reason I do not wish to be understood as limiting myself to the precise arrangement and formation of the several parts herein shown in carrying out my invention in practice except as hereinafter claimed.

l. A form yoke comprising a plurality of duplicate units, each of said units consisting of an elongated member having one end portion returned to provide an overlying arm, a secondmember slidably mounted upon the first named member, means carried by the second member and coacting with the first member to lock the second member against movement along the first member, the opposite end portion of the first member being ill also be obvious that my ini provided with a laterally `disposed lip to prevent removal of the second member from the first member.

2. A form yoke including a unit consisting of an elongated member having one end portion returned to provide an overlying arm, a second member slidably mounted on the first named member, means for holding the second member against movement along the first named member in a direction away from the overlying arm, the opposite end portion of the rst member having a laterally disposed lip to prevent removal ol the second member from the irst named member at said end portion of the first member.

In testimony whereof I hereunto aix my signature.

JOSEPH E. MCFARLAND. 

